What's your budget? I've decided that this is an investment in my future, so have been getting my lunches in advance from Marks and Spencer.
For breakfast I have a one egg omlette with grated cheddar, half a slice of ham in bits, teaspoon of sweetcorn or few bits of spinach. I have it with a salad of cucumber, tomato and avocado. Every day, takes less than 5 min to make, plenty of protein, I eat it at 7.30 and am not hungry until 12.
For lunch I have a whole packet of 'just add' meat or fish (around 120 cals - 150 cals), plus one of the no-carb or v-low-carb salads that are around 50 cals for a whole pack. Examples: hickory smoked chicken with the pepper and butternut salad, or coconut chicken fillets with sugar snap and apple salad. Guarantees the calorie count, tastes yum, no effort, eat both whole packs so no need to 'resist' leftovers, don't take anything else to work for eat.
Evenings I just have a piece of meat or fish with veg. This can be either as a stew/mince type thing with the veg included (a chilli for example), or a roasted/grilled lump. If I fancy a carby type thing I do creamed/mashed cauliflower or celeriac with the lump of meat, or roast some butternut squash. You have to watch your other carbs that day, but it's worth it to have that 'mashed potato' feeling. Sometimes I have one of the bean or lentil based recipes from the book, which means I can eat with boyf. I've had wine a couple of times a week, and have one square of 85% dark chocolate with a ginger tea as my 'pudding' every night.
The M&S stuff is expensive, but i've done it since the beginning of BSD, it's working for me, and now I'm back at work (teacher), it's definitely makes my life easier.